Records of the Geological Survey of India, Volume 103The Survey, 1971 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 21
... maximum coil separation of 100 m . has been possible giving an accuracy of ± 2 % in the in - phase and out - of - phase readings . The coil - separation could be adjusted at best to one percent accuracy in actual field surveys . At a ...
... maximum coil separation of 100 m . has been possible giving an accuracy of ± 2 % in the in - phase and out - of - phase readings . The coil - separation could be adjusted at best to one percent accuracy in actual field surveys . At a ...
Page 22
... maximum of the in - phase component on the down - dip side to evaluate the dip of the conductor and the discrete maximum negative peak value of both in - phase and out - of - phase curves to estimate the depth and the conductivity size ...
... maximum of the in - phase component on the down - dip side to evaluate the dip of the conductor and the discrete maximum negative peak value of both in - phase and out - of - phase curves to estimate the depth and the conductivity size ...
Page 58
... maximum alluvial cover of about 120 m . has been delineated geophysically . This area appears to be suitable for locating tubewells for irrigation ( K.R.M. Simha , 1956 and A G.B. Reddi , 1957 , G.S.I. reports ) . Kailasam ( 1963 ) ...
... maximum alluvial cover of about 120 m . has been delineated geophysically . This area appears to be suitable for locating tubewells for irrigation ( K.R.M. Simha , 1956 and A G.B. Reddi , 1957 , G.S.I. reports ) . Kailasam ( 1963 ) ...
Contents
OF | 1 |
Geophysical Problems and Methods by L | 14 |
Mining Geophysics by P C Paul Y R Bhanu | 31 |
Copyright | |
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airborne alluvium anomaly zones Archaean basin Bihar borehole buried channels Cambay causative body chalcopyrite chromite clay coal seams conductive zones conductor corroborated curves Deccan traps delineated deposits depth Dhauj and Kot district electrical logging electrical resistivity fault field formations frequency G. S. I. report geological mapping Geological Survey Geophysical investigations geophysical logging geophysical methods geophysical surveys gneisses Gondwana graphite gravity groundwater groundwater exploration high resistive horizons in-phase indicated Indo-Gangetic plains Induced Polarisation Kailasam layers limestone locating log trace magnetic anomalies magnetic method magnetic surveys magnetometers mineralised zones minerals Mining Geophysics Nair negative S. P. ohm-m overburden phyllites Pradesh problem profiles quartzites radioactivity Rajasthan refraction seismic resistivity method resistivity values S. P. anomalies sandstones schists sedimentary sediments seismic method seismic refraction self-potential anomalies shales structural studies Subathu subsurface sulphide surface Survey of India surveys were carried terrace deposits Test drilling thickness tion velocity